 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.forms.events;
 /**
  * Classes that implement this interface will be notified before and after the
  * expandable control's expansion state changes.
  *
  * @since 3.0
  */
 public interface IExpansionListener {
     /**
      * Notifies the listener that the expandable control is about to change its
      * expansion state. The state provided by the event is the new state.
      *
      * @param e
      * the expansion event
      */
     void expansionStateChanging(ExpansionEvent e);
     /**
      * Notifies the listener after the expandable control has changed its
      * expansion state. The state provided by the event is the new state.
      *
      * @param e
      * the expansion event
      */
     void expansionStateChanged(ExpansionEvent e);
 }

